function Person(name){
            this.name = name;
            this.say = function(){
                alert('My name is '+this.name);
            }
        }

        function F2E(name,id){
            this.temp = Person;             //将要继承构造函数接过来
            this.temp(name);                //（在函数内部执行）在这个时候this指向的是F2E
            delete this.temp;               //在删除掉接过来的变量（完成了继承）
            this.id = id;
            this.showId = function(){
                alert('Good morning,Sir,My work number is '+this.id);
            }
        }